3D printing is great if you need to create something made of plastic or even metal or ceramic out of thin air. But what if you want something fuzzier and warmer? Something, like say, a hand-knit scarf ...

This awesome OpenKnit machine can weave a sweater from a digital pattern in about an hour—that’s cool. I mean, look at it go! Even cooler is that you can actually construct this awesome OpenKnit ...